[Coco] What would a CoCo successor have to have as a minimum?
jdaggett at gate.net
jdaggett at gate.net
Sat Nov 27 10:20:47 EST 2010
On 27 Nov 2010 at 7:32, Mike Pepe wrote:
> > -----Original Message-----
>
> > FAT16/FAT32 in 8.3 format. Long file names are not supported. M$
> > proprietary and requires
> > royalties to M$.
>
> Uh, since when? The VFAT read/write code has been freely available in Linux for, like, ever. Or maybe Linus already paid the royalty?
>
> Nah.
>
> -Mike
>
Mike
A better answer is that the 8.3 directory format is a function of the VDAP and/or V2DAP
software within the Vinculum device. The dame restrictions were on the the DOS on a CHIP
IC that has now seem to be discontinued. I do seem to remember the datasheets on the
DOS on a CHIP stating something to the effect that long file names where proprietary to M$. I
will have to reinvestigate that again. Vinculum only supports 512 byte sectors and must
adhere to the AT or SCSI commands set. The Viculum 2 will support smaller sector sizes
with a read/write /modify protocol. This will force twice as many reads or writes to a BOMS
device.
Still usable. It is esentially a DOS on a chip. Maybe the Vinculum 2 firmware can be modified
to read and write long filenames is uncertain yet.
I am not sure if M$ patented or copyrighted the long file name algorithm. If patented then it is
soon to run out. Copyrighted would require royalties to M$ for usage of their algorithm. Now
Linux is a UNIX derivative and has had long file names before M$ if I remember correctly.
Maybe this will help clear things up a bit.
james
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